Home / 200,820.16-301,045.92-69,400

Finding the Fourth Proportional to 200,820.16, 301,045.92 and 69,400

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Solution

The fourth proportional to 200,820.16, 301,045.92 and 69,400 is: 104,036.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,820.16 : 301,045.92 = 69,400 : x
  2. Step 2: Convert to fraction form
    200,820.16/301,045.92 = 69,400/x
  3. Step 3: Cross multiply
    200,820.16x = 301,045.92 × 69,400
  4. Step 4: Simplify right side
    200,820.16x = 20,892,586,848
  5. Step 5: Solve for x
    x = 20,892,586,848/200,820.16
  6. Step 6: Final answer
    x = 104,036.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.